Morphological control and assembly of zinc oxide using a biotemplate

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• 作者：Melanie M. Tomczak ; Maneesh K. Gupta ; Lawrence F. Drummy ; Sophie M. Rozenzhak ; Rajesh R. Naik
• 关键词：Peptide ; ZnO ; Silk ; Phage display
• 刊名：Acta Biomaterialia
• 出版年：2009
• 出版时间：March 2009
• 年：2009
• 卷：5
• 期：3
• 页码：876-882
• 全文大小：549 K

文摘

Zinc oxide is a wide band gap material that has significant applications in photovoltaics, piezoelectrics and optoelectronics. Traditionally, ZnO has been synthesized using high temperatures and harsh reaction conditions. Recently, benign reaction conditions have been used to synthesize ZnO using amine and citrate additives. In this study, peptide phage display was performed to identify a peptide, termed Z1, that binds to and directs the growth of ZnO hexagonal nanocrystals. By altering the concentration of Z1 peptide, the ZnO nanocrystal morphology can be tailored. Additionally, Z1 peptide was used to direct the growth of ZnO structures on free-standing silk films. The results presented here demonstrate the utility of peptides in controlling the structure and deposition of ZnO.